Rotating-drum flows span a variety of research areas, ranging from physics of granular
matter through hydrodynamics of suspensions to pure liquid coating flows. Recent years …

We highlight some recent developments that widen the scope and reach of mesoscopic thin-
film (or long-wave) hydrodynamic models employed to describe the dynamics of thin films …

The study of the dynamics of fluids is a central theme of modern applied mathematics. It is
used to model a vast range of physical phenomena and plays a vital role in science and …

Two-fluid dynamics is a challenging subject rich in physics and prac tical applications. Many
of the most interesting problems are tied to the loss of stability which is realized in …

We describe a number of different phenomena seen in the free-surface flow inside a partially
filled circular cylinder which is rotated about its horizontal axis of symmetry. At low angular …

High-viscosity liquids hate to work. Low-viscosity liquids are the victims of the laziness of
high-viscosity liquids because they are easy to push around. The arrangement of …

Thin liquid films are ubiquitous in nature and technology so an understanding of their
mechanics is important in many applications. A typical thin film flow consists of an expanse …

An axisymmetric viscous carbon nanotube (CNT) nanofluid flow exterior to a rotating circular
cylinder of radius a 0 along with viscous dissipation and magnetohydrodynamic (MHD) is …

We investigate the dynamics of thin films driven by gravity on the outer surface of a cylinder
and sphere. The surface is rigid, stationary and the axis of the cylinder is horizontal. An …

In this paper we propose equations of motion for the dynamics of liquid films of surfactant
suspensions that consist of a general gradient dynamics framework based on an underlying …